LAPSE:2020.0240
Published Article
LAPSE:2020.0240
Controllability Comparison of the Four-Product Petlyuk Dividing Wall Distillation Column Using Temperature Control Schemes
Xing Qian, Rui Liu, Kejin Huang, Haisheng Chen, Yang Yuan, Liang Zhang, Shaofeng Wang
February 12, 2020
An effective process intensification strategy based on dividing walls shows promising energy-saving results for distillation processes. The three-product Petlyuk dividing wall distillation columns (DWDCs) are able to save approximately 30% energy in comparison with the traditional distillation columns. Furthermore, the four-product extended Petlyuk DWDC reduces about 50% of operation costs than conventional distillation sequences. Although researchers have extensively studied control schemes for the three-product Petlyuk DWDC, relatively little work has been done on the four-product extended Petlyuk DWDC. This paper studies feasible temperature control schemes containing temperature control scheme (TC), simplified temperature difference control scheme (STDC), and simplified double temperature difference control scheme (SDTDC) for the four-product extended Petlyuk DWDC. STDC and SDTDC are introduced so as to improve the dynamic performances with simple control schemes. All three control schemes are tested against a series of feed compositions and feed rate disturbances. Dynamic performances prove that the proposed STDC and SDTDC schemes are better at handling the inserted feed disturbances. These are very encouraging results for industrialization of the four-product extended Petlyuk DWDC in the future.
Keywords
dividing wall distillation column (DWDC), extended Petlyuk DWDC, simplified double temperature difference control (SDTDC), simplified temperature difference control (STDC), temperature control (TC)
Suggested Citation
Qian X, Liu R, Huang K, Chen H, Yuan Y, Zhang L, Wang S. Controllability Comparison of the Four-Product Petlyuk Dividing Wall Distillation Column Using Temperature Control Schemes. (2020). LAPSE:2020.0240
Author Affiliations
Qian X: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China [ORCID]
Liu R: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Huang K: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Chen H: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Yuan Y: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Zhang L: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Wang S: College of Information Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China
Journal Name
Processes
Volume
8
Issue
1
Article Number
E116
Year
2020
Publication Date
2020-01-16
Published Version
ISSN
2227-9717
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PII: pr8010116, Publication Type: Journal Article
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LAPSE:2020.0240
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doi:10.3390/pr8010116
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Feb 12, 2020
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Feb 12, 2020
 
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Calvin Tsay
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